Marys River Loop
Moderate · AceOregon
No photos yet
Add the first3.5 km2.2 mi
Distance
84 m276 ft
Elevation gain
55m
Est. time
Route
Route type
What to expect on this trail
- Natural surface
- Moderate climbs
- Rough underfoot
- Hiking
How these were worked out
- Natural surfacerecorded
- OpenStreetMap records the surface of this trail as "unpaved". Source: OpenStreetMap, high confidence.
- Moderate climbsestimated
- Nine tenths of this trail is at or below a 13.3% grade, which is steady work rather than scrambling. Source: DEM terrain profile, moderate confidence.
- Rough underfootestimated
- OpenStreetMap records smoothness "bad" on this trail. Source: OpenStreetMap, moderate confidence.
Biking is not listed. That means no explicit permission is recorded, which is not the same as a prohibition — see the bike section below.
Ace's Active Trek A real workout with honest climbing — pack water and snacks.
About this trail
Marys River Loop is a 3.5 km trail in Oregon. Route imported from OpenStreetMap (© OpenStreetMap contributors, ODbL); community descriptions, photos, and condition reports welcome.
Play the route
Fly the trail end to end, with the climb as it comes.
Conditions
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Elevation profile
Terrain sampled every 35 m from public elevation data.
- Descent
- 42 m
- High point
- 265 m
- 90th percentile grade
- 13.3%
Bike access & suitability
Legal permission and physical difficulty are evaluated separately.
Legal access
Confirm before riding
No authoritative or explicit bicycle-access rule is recorded for this trail.
Estimated MTB suitability
Difficult
80% confidence - score 71/100
- - Terrain: 13.3% 90th-percentile grade and 24 m climbing per km.
- - Surface: unpaved.
- - Smoothness: bad.
- - Track firmness: grade2.
Source: No access source recorded - checked Aug 2, 2026 - rules v2
Posted signs and current land-manager closures always override OpenTrail.
Report incorrect bike access
Connecting trails
Trails whose path meets this one — plan a longer route or a loop.
Trails nearby
Other routes within about 15 km.
- 2.4 km away
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544 m · 5m · ↑ 0 m
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Panama Speedway
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554 m · 10m · ↑ 39 m
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Collarbone Connector
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1.38 km · 25m · ↑ 43 m
- 4.0 km away
Supertree
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827 m · 20m · ↑ 75 m
- 4.2 km away
Collarbone Alley
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1.44 km · 20m · ↑ 0 m
- 4.2 km away
Root Down
Moderate · AceOregon
946 m · 15m · ↑ 0 m
- 4.3 km away
Tum Tum to Supertree
Easy · FernOregon
626 m · 10m · ↑ 0 m
- 4.4 km away
Supertree (damaged)
Moderate · AceOregon
813 m · 15m · ↑ 33 m
- 4.5 km away
Blodgett Staircase
Easy · FernOregon
938 m · 15m · ↑ 0 m
- 4.7 km away
Ouch
Easy · FernOregon
600 m · 10m · ↑ 14 m
- 4.7 km away
Carl Backtrack to RootDown
Easy · FernOregon
768 m · 10m · ↑ 15 m
- 4.9 km away
Carl's Adventure
Moderate · AceOregon
1.06 km · 15m · ↑ 14 m
Photos
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Frequently asked
How long is Marys River Loop?
Marys River Loop is 3.5 km (2.2 miles) as a route. Allow roughly 55m at a steady walking pace, not counting stops.
How hard is Marys River Loop?
OpenTrail rates it moderate. It climbs about 84 m overall, and its steepest sustained stretches run around 13%.
Where is Marys River Loop?
Marys River Loop is in Oregon. The map on this page shows the full route, where it starts, and any mapped parking nearby.
Is there parking at Marys River Loop?
No parking area is mapped within 1.5 km of this route in OpenStreetMap. That is not the same as there being none — check local access rules before you go.